期刊论文

中文

电子科技

1007-7820

2017

30

5

62-64+86

10.16180/j.cnki.issn1007-7820.2017.05.017

本校为第一机构

介绍了一种基于在系统可编程门阵列（FPGA）的简易电子琴设计方法,可实现手动弹奏、自动演奏预存乐曲和简谱码显示功能。该设计的主体部分采用超高速集成电路硬件描述语言（VHDL）编程实现。根据简谱记录的频率产生方式,通过数控分频器将基准频率按一定的分频比分频,得到乐曲中所有音符信号的频率,再由驱动电路驱动发声或接耳机,便可实现乐曲的弹奏或播放功能,用数码管和发光管来显示输出音名对应的简谱码。该方法设计简单、修改方便、设计周期短,实验证明了该设计的可行性,具有一定的实用价值。

A simple design of the electronic piano based on FPGA capable of manual - play, auto - play and display of the numbered musical notation codes is presented. It is realized mainly by VHDL. In accordance with the generation method of audio signal frequency, we can get all frequencies of musical note by the NC Frequency divider. By connecting the output to the loudspeaker or headset, manual - play and auto - play functions can be realized. The numbered musical notation codes are shown by nixie tube and luminous. The design has the advantage of simple structure, easy modific...